/*
*   Copyright 2011 Matthew Crinklaw-Vogt
*
*   Licensed under the Apache License, Version 2.0 (the "License");
*   you may not use this file except in compliance with the License.
*   You may obtain a copy of the License at
*
*       http://www.apache.org/licenses/LICENSE-2.0
*
*   Unless required by applicable law or agreed to in writing, software
*   distributed under the License is distributed on an "AS IS" BASIS,
*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*   See the License for the specific language governing permissions and
*  limitations under the License.
*/

package com.tantaman.util.observer;

import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.concurrent.CopyOnWriteArraySet;

public class ObserverSet<T> implements Iterable<T> {
	private final Collection<T> mObservers;
	
	public ObserverSet() {
		mObservers = new CopyOnWriteArraySet<T>();
	}
	
	public void addObserver(T pObs) {
		mObservers.add(pObs);
	}
	
	public void removeObserver(T pObs) {
		mObservers.remove(pObs);
	}
	
	@Override
	public Iterator<T> iterator() {
		return Collections.unmodifiableCollection(mObservers).iterator();
	}
}
